Troubleshooting; Step-By-Step Troubleshooting - GE AF-650 GP Quick Installation Manual

7 Troubleshooting

7.1 Troubleshooting

7.1.1 Step-by-step Troubleshooting

Check: LEDs
The option contains two LEDs to indicate the state of the device and the network. During normal operation the MS and at least one NS LED will show a constant
green light.
State LED
No power
Device operational Green:
Standby Green:
Minor fault Red:
Major fault Red:
Red:
Self test
Green:
Yellow
No IP address
Wink Yellow
Table 7.1: MS: Module Status
State
No IP-address (no power)
Connected Green:
Duplicate IP Red:
Red:
Self test
Green
Device has been winked Yellow
Link present at 10 Mbps Yellow
Table 7.2: NS1 + NS2: Network Status (one per port)
Check: Link Status
The status of the Ethernet link cannot be directly identified by means of the LEDs.
Use par. EN-10, Link Status to verify presents of the link.
Use par. EN-11, Link Duration to verify that the link is steady present.
The parameter will show the duration of the present link, and preset to 00:00:00:00 if the link is broken.
Check: Cabling
In rare cases of cabling mis-configuration, the option might show the presents of a link, but no communication is running. Exchange the cable in doubt.
Check: IP Address
Verify that the option has a valid IP address (please refer to section: IP Settings) in par. EN-01, IP Address. If the option has identified a duplicate IP Address NS
LEDs will light steady red. If the option is set up for BOOTP or DHCP, verify that a BOOTP or DHCP server is connected in par. EN-04, DHCP Server. If no server is
connected, the parameter will show: 000.000.000.000.
Off
Solid green
Flashing green
Flashing red
Solid red
Flashing red/green The Modbus TCP option is in self-test mode
Steady yellow
Flashing yellow
LED
Off
Solid green
Solid red
Flashing red/green The Modbus TCP option is in self-test mode
Flashing yellow
Steady yellow
Description
The device is un-powered
The device is operational
The device needs commissioning
The device has detected a recoverable fault
The device has detected an un-recoverable fault
No IP address configured or obtained
Flash for 20 seconds
Description
No link present (or is un-powered)
There is established (at least) one CIP connection to
the device
The IP-address assigned to the device is already in
use
Flash for 20 seconds
Link present; but nor winked and no ACD
Modbus TCP
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